>>I think my favourite made-up word in English is 'Wellness'. What a stupid word. People go to wellness clinics I guess because they can't stand the thought of going to a health clinic.
>
>It's not so bad. Afterall, would you rather attend a Homeostasis Clinic instead? :o)

As long as we're on it, imho, the best real word in the English language is 'galoshes'. It's beautifully onomatopoeic, and I'd bet that even people who've never heard the word could probably figure out what they are.